<li>
  <img src="{{ $user->gravatar() }}" alt="{{ $user->name }}" class="gravatar"/>
  <a href="{{ route('users.show', $user->id )}}" class="username">{{ $user->name }}</a>

@can('destroy',$user)
  <form  action="{{route('users.destroy',$user->id)}}" method="post">
     {{ csrf_field()}}
     {{ method_field('delete')}}
      <button type="submit" class="btn btn-sm btn-danger delete-btn">删除</button>
  </form>
 @endcan
</li>
